A resistance type vertical axis wind turbine for building integration
A resistance type vertical axis wind turbine for building integration
The Persian or Sistan wind mill is possibly the oldest wind energy device. It consists of a vertical axis with six blades, and an outer shroud which encases half the rotor against the wind. The wind only acts on one half of the runner, providing the driving force. The efficiency of this machine was assumed to be between 5 and 14%, too low for practical application today. The concept however is interesting since it has the potential for integration into buildings. Recently, the Sistan wind mill was re-visited to assess whether the performance could be improved. Initial exploratory tests reported in the literature indicated potential. At Southampton University, a series of tests was conducted with a model of 0.6 m diameter and 0.5 m high runner employing an improved measurement and data acquisition system. Two geometries were investigated. Qualitative tests indicated that a gap between blade and axis is essential for functionality. Performance tests with an improved geometry resulted in efficiencies of 0.4 to 0.5, similar to e.g. Darrieus-type VAWTs, for blade to wind speed ratios of 0.82 to 1.8. The modified resistance-type vertical-axis wind turbine appears to have potential for further development.
Vertical axis wind turbine, building integration
803-814
Muller, Gerald
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Chavushoglu, Mert
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Kerri, Mark
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Tsuzaki, Toru
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October 2017
Muller, Gerald
f1a988fc-3bde-429e-83e2-041e9792bfd9
Chavushoglu, Mert
9452cd79-3a61-4356-8f91-39bdeba6824c
Kerri, Mark
07ca6e16-ae8e-4590-8ff9-5c7c702a5c18
Tsuzaki, Toru
123b7101-03d4-4db3-96da-2226154b0520
Muller, Gerald, Chavushoglu, Mert, Kerri, Mark and Tsuzaki, Toru
(2017)
A resistance type vertical axis wind turbine for building integration.
Renewable Energy, 111, , [8780].
(doi:10.1016/j.renene.2017.05.017).
Abstract
The Persian or Sistan wind mill is possibly the oldest wind energy device. It consists of a vertical axis with six blades, and an outer shroud which encases half the rotor against the wind. The wind only acts on one half of the runner, providing the driving force. The efficiency of this machine was assumed to be between 5 and 14%, too low for practical application today. The concept however is interesting since it has the potential for integration into buildings. Recently, the Sistan wind mill was re-visited to assess whether the performance could be improved. Initial exploratory tests reported in the literature indicated potential. At Southampton University, a series of tests was conducted with a model of 0.6 m diameter and 0.5 m high runner employing an improved measurement and data acquisition system. Two geometries were investigated. Qualitative tests indicated that a gap between blade and axis is essential for functionality. Performance tests with an improved geometry resulted in efficiencies of 0.4 to 0.5, similar to e.g. Darrieus-type VAWTs, for blade to wind speed ratios of 0.82 to 1.8. The modified resistance-type vertical-axis wind turbine appears to have potential for further development.
Text
RENE 8780
- Accepted Manuscript
More information
Accepted/In Press date: 3 May 2017
e-pub ahead of print date: 4 May 2017
Published date: October 2017
Keywords:
Vertical axis wind turbine, building integration
Identifiers
Local EPrints ID: 412320
URI: http://eprints.soton.ac.uk/id/eprint/412320
ISSN: 0960-1481
PURE UUID: 7637d8f2-1b78-47c9-83d1-859201747436
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Date deposited: 17 Jul 2017 13:29
Last modified: 16 Mar 2024 05:25
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Contributors
Author:
Mert Chavushoglu
Author:
Mark Kerri
Author:
Toru Tsuzaki
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